(NewsNation) — This month marks four years since Dane Elkins vanished.

Elkins was 21 years old at the time of his disappearance and was studying engineering at the University of California, Santa Cruz.

NewsNation has obtained a new video from his mother on the day of his disappearance where Elkins talked about the CIA, referencing recruitment and saying, “If you don’t do what they want, they will kill you.”

Elkins’ mother, Deborah Elkins, and sister, Madison Elkins, joined “NewsNation Live” to provide an update on the search.

“There are two active leads right now,” Deborah Elkins told NewsNation. “Thank you to NewsNation because we have 1.7 million views on that TikTok from NewsNation, and that is 1.7 million more kind eyes that are hearing about the story for the first time.”

Deborah Elkins is inundated with reported sightings of her son, but she believes the majority are merely lookalikes. Some people even suggest he has a striking resemblance to Luigi Mangione, the suspected shooter of UnitedHealthcare CEO Brian Thompson.

“I really want everybody to get a photo, most importantly, because we’ve had 1000s and 1000s of sightings, but they turn out to be lookalikes,” she said.

“Dane doesn’t have any tattoos. There’s nothing really distinguishing. He looks like every other guy, even people are saying he’s the real Luigi. Dane is a good-looking guy. Dane doesn’t have anything to identify him that somebody could be sure,” she continued.

Deborah Elkins is asking the public not to call her son by name if they see him because it could trigger his paranoia.

Instead, she hopes people will be kind and offer food, then call the family at (562) 504-6005 to let the family know where they saw him.